Types of dampers include fire dampers, smoke dampers, combination fire-smoke dampers, ceiling radiation dampers and corridor dampers. While many people are familiar with the process, they do not know that the airflow can be controlled manually. Dampers for HVAC Purposes. There are two major … Control dampers allow the airflow through the system and are installed at different points in the ductwork. In HVAC installations two different types of rectangular dampers are used to modulate air flow. Sizes range from 4 inches to 16 inches. Today, we offer a complete line of HVAC dampers and air control products including volume control, balancing, round, zone, fire, smoke and combined models. In case of fire, the fire and gas dampers will close automatically, preventing additional oxygen to enter the space to fuel and spread a fire. In addition, they can be used as a positive shutoff or for automatic control. Several factors such as ambient temperature and the loading frequency affect the performance and consequently the effectiveness of the damper system. Fire dampers are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent the spread of fire inside the ductwork through fire-resistance rated walls and floors. At Flextech Industries, they manufacture and supply a wide range of damper types to companies all over North America. Every type of damper works in accordance with UL standards, performs different functions, and must be maintained differently. Parallel blade dampers are designed in a way so the blades move in the same parallel direction (similar to a window louver) when opened. Volume control dampers are offered with either parallel or opposed blade operation and each style has distinguishing characteristics with regard to the type of operation. Dampers fall into five types, each with a specific function. Fire/smoke dampers are similar to fire dampers in fire resistance rating, and also prevent the spread of smoke inside the ducts. All our intumescent fire dampers and smoke dampers are designed for application in ventilating systems and air conditioning systems where the … Damper Types. FAMCO provides a variety of different dampers to help suit whatever your needs may be. Choose from both rectangle and round configurations designed specifically for things like safety applications, low-leakage and heavy duty industrial needs, and backdraft for pressure relief. it is designed to close automatically on the detection of heat. Another type of damper is viscoelastic dampers that stretch an elastomer in combination with metal parts. Like dampers, louvers are usually made of aluminum or steel. As the thermostat is adjusted, the dampers automatically activate to increase or decrease air flow. A. Air control dampers are installed at various points in the duct work to control air flow system. Selecting the Common damper types right actuator and applications The right damper actuator for any HVAC application Our OpenAir™ series provides more torque sizes to meet all of your needs. There are two basic types of duct damper models, and each is chosen based on the application. Slip and Clip Type Volume Control Damper. With over 40 years of innovating . Some industrial dampers are designed for pressure relief, or recommended for use within specific HVAC systems. Fire Dampers It is another type of VCD that differs somewhat from the previous VCD shown above. 1. 2: Viscoelastic Damper. Most manual dampers have a straightforward design that allows operators to intuitively control airflow through the system, and they tend to be … Volume air dampers control overall air flow as part of the building's heating and cooling system. The High-temperature damper operates continuously at 300°c for up to 2 hours. What type of control action will the damper perform? Levers located outside of air vents and ducts control damper plates or valves in a manual system. There are typically two different types of blade dampers used to modulate air flow: parallel and opposed blade dampers. A damper is sometimes used to cut off central air conditioning (heating or cooling) to an unused room, or to regulate it for room-by-room temperature and climate control. In this article, we will discuss the four types of life safety dampers and how they work in an emergency. Its operation can be manual or automatic. control actuators, Siemens is a recognized global leader in HVAC damper actuators. If a damper is required to operate automatically as part of a HVAC system, an electric or pneumatic actuator should be provided. Fire dampers are crucial passive fire protection products and are used in air conditioning, ventilation and heating systems. In order to improve efficiency and occupant comfort, HVAC systems are commonly divided up into multiple zones. FIRE DAMPERS Fire dampers are used to restrict the spread of fire where ducts and air transfer openings penetrate… read more See Fig 2. FAMCO sells high quality HVAC dampers for a variety of uses. Johnson Controls is committed to customer satisfaction, and that’s why we custom-build each of our HVAC dampers to suit your specific size and model requirements. Control dampers can fully open or close the blades multiple times in a day to carry out the given task. Will it be two-position, modulating, or some other type of control? The prices vary by damper type, so we will outline a few here to paint a better picture: Motorized damper: Our motorized dampers start at $115.01 for a 4 inch 24 volt damper with no end switch. Flow system system, an electric or pneumatic actuator should be provided years ago as part of a HVAC,. In accordance with UL standards, performs different functions, and fire dampers English. 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